Out-of-bounds Read in Libarchive

CVE-2019-1000019

libarchive version commit bf9aec176c6748f0ee7a678c5f9f9555b9a757c1 onwards (release v3.0.2 onwards) contains a CWE-125: Out-of-bounds Read vulnerability in 7zip decompression, archive_read_support_format_7zip.c, header_bytes() that can result in a crash (denial of service). This attack appears to be exploitable via the victim opening a specially crafted 7zip file.

Vulnerability class: Buffer Overflow

EPSS: 0.034 (87.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-1000019?
CVE-2019-1000019 is a medium-severity vulnerability in Libarchive, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2019-02-04.
How severe is CVE-2019-1000019?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2019-1000019 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.